add airports table and #7 integrate permissions

app/Models/Airport.php

@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Models;
+
+use Eloquent as Model;
+use Illuminate\Database\Eloquent\SoftDeletes;
+
+/**
+ * Class Airport
+ * @package App\Models
+ */
+class Airport extends Model
+{
+    use SoftDeletes;
+
+    public $table = 'airports';
+
+
+    protected $dates = ['deleted_at'];
+
+
+    public $fillable = [
+        'icao'
+    ];
+
+    /**
+     * The attributes that should be casted to native types.
+     *
+     * @var array
+     */
+    protected $casts = [
+
+    ];
+
+    /**
+     * Validation rules
+     *
+     * @var array
+     */
+    public static $rules = [
+        'icao' => 'required'
+    ];
+
+    public function save(array $options = [])
+    {
+        if(in_array('icao', $options)) {
+            $options['icao'] = strtoupper($options['icao']);
+        }
+
+        return parent::save($options);
+    }
+}